イグトランスの頭の中（のかけら）

#include <iostream>
#include <locale>
#include <vector>
#include <string>
#include <array>
#include <codecvt>
#include <utility>
#include <tuple>
#include <windows.h>
#include <boost/range/algorithm.hpp>
 
using namespace std;
 
void PutPart(ostream& os, int p)
{
  switch (p)
  {
    case money_base::none: os << "none"; break;
    case money_base::space: os << "space"; break;
    case money_base::symbol: os << "symbol"; break;
    case money_base::sign: os << "sign"; break;
    case money_base::value: os << "value"; break;
  }
}
 
int main()
{
  typedef pair<wstring, wstring> CountryAndLanguage;
  vector<CountryAndLanguage> locs;
  ::EnumSystemLocalesEx([](LPWSTR localeName, DWORD /*flags*/, LPARAM lParam) {
    array<WCHAR, 4> language;
    ::GetLocaleInfoEx(localeName, LOCALE_SABBREVLANGNAME, language.data(), language.size());
    array<WCHAR, 4> country;
    ::GetLocaleInfoEx(localeName, LOCALE_SABBREVCTRYNAME, country.data(), country.size());
 
    reinterpret_cast<vector<CountryAndLanguage>*>(lParam)->push_back({country.data(), language.data()});
    return TRUE;
  }, LOCALE_NEUTRALDATA, reinterpret_cast<LPARAM>(&locs), nullptr);
  sort(locs.begin(), locs.end());
 
  typedef tuple<array<char, 8>, string> MoneyPattern;
  vector<MoneyPattern> moneyPatterns;
  for (auto const& countryAndLang : locs)
  {
    wstring locW = countryAndLang.second + L'_' + countryAndLang.first;
    string loc(locW.begin(), locW.end());
 
    locale l(loc);
    auto const& m = use_facet<moneypunct<char>>(l);
 
    array<char, 8> format;
    auto it = boost::copy(m.pos_format().field, format.begin());
    boost::copy(m.neg_format().field, it);
 
    moneyPatterns.emplace_back(format, loc);
  }
  boost::sort(moneyPatterns);
  for (const auto& pattern : moneyPatterns)
  {
    cout << std::get<1>(pattern);
    for (int p : std::get<0>(pattern))
    {
      cout << '\t';
      PutPart(cout, p);
    }
    cout << '\n';
  }
}